The important item on the agenda was the election of a disciple to take the place of Judas Iscariot. There were about one hundred and twenty Christians present at that meeting in the upper room where the eleven lived, and they all, both men and women, prayed.
Three years earlier, Christ Jesus had chosen the twelve apostles with the wisdom he derived from his Father, God. Now, for the first time, the disciples were themselves faced with the need to make a selection from one of their own number.
As Peter pointed out, the election was in accord with Bible prophecy, and he explained that the one chosen would be from among those who had personal experience of the Master's teaching and resurrection. He said, "Of these men which have companied with us all the time that the Lord Jesus went in and out among us, beginning from the baptism of John, unto that same day that he was taken up from us, must one be ordained to be a witness with us of his resurrection." Acts 1:21, 22;